X-Git-Url: https://bilbo.iut-bm.univ-fcomte.fr/and/gitweb/hpcc2014.git/blobdiff_plain/2f2f8237094c0e1c2d07da21054aafcc99672647..108b6ffda00e3d8bf697f0f6ee88c0c6e9d53e3f:/hpcc.tex?ds=inline diff --git a/hpcc.tex b/hpcc.tex index 5559af7..6a39362 100644 --- a/hpcc.tex +++ b/hpcc.tex @@ -251,8 +251,8 @@ SimGrid~\cite{SimGrid,casanova+legrand+quinson.2008.simgrid} is a simulation framework to study the behavior of large-scale distributed systems. As its name says, it emanates from the grid computing community, but is nowadays used to study grids, clouds, HPC or peer-to-peer systems. The early versions of SimGrid -date from 1999, but it's still actively developed and distributed as an open -source software. Today, it's one of the major generic tools in the field of +date from 1999, but it is still actively developed and distributed as an open +source software. Today, it is one of the major generic tools in the field of simulation for large-scale distributed systems. SimGrid provides several programming interfaces: MSG to simulate Concurrent @@ -383,8 +383,8 @@ exchanged by message passing using MPI non-blocking communication routines. \begin{figure}[!t] \centering - \includegraphics[width=60mm,keepaspectratio]{clustering2} -\caption{Example of two distant clusters of processors.} + \includegraphics[width=60mm,keepaspectratio]{clustering} +\caption{Example of three distant clusters of processors.} \label{fig:4.1} \end{figure} @@ -422,7 +422,7 @@ u =0 \text{~on~} \Gamma =\partial\Omega \right. \label{eq:02} \end{equation} -where $\nabla^2$ is the Laplace operator, $f$ and $u$ are real-valued functions, and $\Omega=[0,1]^3$. The spatial discretization with a finite difference scheme reduces problem~(\ref{eq:02}) to a system of sparse linear equations. Our multisplitting method solves the 3D Poisson problem using a seven point stencil whose the general expression could be written as +where $\nabla^2$ is the Laplace operator, $f$ and $u$ are real-valued functions, and $\Omega=[0,1]^3$. The spatial discretization with a finite differences scheme reduces problem~(\ref{eq:02}) to a system of sparse linear equations. Our multisplitting method solves the 3D Poisson problem using a seven point stencil whose the general expression could be written as \begin{equation} \begin{array}{l} u(x-1,y,z) + u(x,y-1,z) + u(x,y,z-1)\\+u(x+1,y,z)+u(x,y+1,z)+u(x,y,z+1) \\ -6u(x,y,z)=h^2f(x,y,z),